Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://smidgel.ru/uplcv?utm_term=es+file+explorer+a PDF link annotation

  • https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/9c814c970a3929fcf39c80bc6be5db10/nitin.pdfIn PDF document text
  • http://sandsflooring.co.uk/ckfinder/userfiles/files/29845902066.pdfIn PDF document text
  • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e54f10969a---66756560689.pdfIn PDF document text
  • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613e1bad24a26---89626982291.pdfIn PDF document text
  • http://amunt.madteam.net/ckfinder/userfiles/files/14106213356.pdfIn PDF document text
  • https://bnbcostaverde.it/userfiles/file/pivebodipolefosuri.pdfIn PDF document text
  • http://zhxndl.com/uploadfiles/files/jukunogaloruroxu.pdfIn PDF document text
  • https://aodaixuan.vn/app/webroot/upload/image/files/93938687347.pdfIn PDF document text
  • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/98a7e5ead4ebc3fdd9f09e9279f42fb7/rejikesajenubikogud.pdfIn PDF document text
  • https://ambulatorioveterinariosismondi.eu/file/14583139751.pdfIn PDF document text
  • http://taigesw.com/upload/files/19867958512.pdfIn PDF document text
  • http://antonioruizabogados.es/userfiles/file/xodiwisonap.pdfIn PDF document text
  • http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/161348e9a838bc---bezexefijigiferoxivoj.pdfIn PDF document text
  • http://tandartsindex.nl/images/uploads/93380141314.pdfIn PDF document text
  • https://oceanflowerhotel.com/uploads/image/files/gifegopevukeb.pdfIn PDF document text
  • http://jrmhandling.nl/upload/file/15386738470.pdfIn PDF document text
  • http://mdfgiare.com/upload/files/jobuvopeporu.pdfIn PDF document text
  • http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613222f593763---26039262279.pdfIn PDF document text
  • https://latrinquette.com/upload/editor/file/53062525327.pdfIn PDF document text
  • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/tmp/bowivomabolir.pdfIn PDF document text
  • http://renknh.com/ckupload/files/lexixejotosad.pdfIn PDF document text
  • http://bm-shower.com/userfiles/files/31158012534.pdfIn PDF document text
  • https://cihangirhotel.com/upload/ckfinder/files/rekoxawotu.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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